C8051F961-B-GM

Overview

The C8051F961-B-GM is an 8-bit microcontroller from Silicon Labs, part of the C8051F96x series. It utilizes a CIP-51 8051 core operating at a maximum clock frequency of 25 MHz. The device features 64 kB of in-system programmable Flash memory and 8.25 kB of data RAM. It is housed in a TQFP-80 package with 57 available I/O pins. The unit supports a supply voltage range of 1.8 V to 3.8 V and operates within a temperature range of -40°C to +85°C. Peripheral interfaces include I2C, SPI, and UART.

Feature Summary

• Integrates a high-speed 8051-compatible processor core for efficient instruction execution.
• Includes on-chip analog components such as multi-channel ADCs and comparators.
• Supports multiple serial communication protocols including I2C, SPI, and UART.
• Features in-system programmable non-volatile Flash memory for code storage.

Applications

• Industrial control systems requiring robust 8-bit processing
• Consumer electronics utilizing serial communication interfaces
• Embedded sensor nodes with analog input requirements

Procurement Notes

Verify component authenticity through authorized channels due to potential availability constraints. Confirm package integrity and pin alignment against the TQFP-80 specification before integration. Review official datasheets for any specific handling or moisture sensitivity precautions required during assembly processes.

Selection Notes

Select this model when a dedicated 8-bit MCU with integrated analog peripherals is required. Consider the 25 MHz performance limit and 64 kB memory capacity against application demands. Ensure the TQFP-80 footprint matches the target PCB layout and that the 1.8 V to 3.8 V voltage range aligns with system power rails.

Part Context

This component belongs to the C8051F96x family of mixed-signal microcontrollers. These devices are designed to provide complete single-chip solutions by combining digital processing capabilities with essential analog functions. The series targets applications needing cost-effective, high-performance 8-bit control with extensive peripheral integration.

Replacement Considerations

Public confirmed substitute part numbers were not identified in verified documentation. Consult manufacturer resources for current lifecycle status and potential obsolescence management strategies.